mirror of https://gitlab.com/octtspacc/staticoso
176 lines
5.7 KiB
Python
176 lines
5.7 KiB
Python
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#!/usr/bin/env python
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"""
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Copyright (c) 2013, Dave Mankoff
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of Dave Mankoff nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL DAVE MANKOFF BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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"""
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import argparse
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import codecs
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import locale
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import io
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import sys
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#import htmlmin
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from . import Minifier
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parser = argparse.ArgumentParser(
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description='Minify HTML',
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formatter_class=argparse.RawTextHelpFormatter
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)
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parser.add_argument('input_file',
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nargs='?',
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metavar='INPUT',
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help='File path to html file to minify. Defaults to stdin.',
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)
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parser.add_argument('output_file',
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nargs='?',
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metavar='OUTPUT',
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help="File path to output to. Defaults to stdout.",
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)
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parser.add_argument('-c', '--remove-comments',
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help=(
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'''When set, comments will be removed. They can be kept on an individual basis
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by starting them with a '!': <!--! comment -->. The '!' will be removed from
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the final output. If you want a '!' as the leading character of your comment,
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put two of them: <!--!! comment -->.
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'''),
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action='store_true')
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parser.add_argument('-s', '--remove-empty-space',
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help=(
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'''When set, this removes empty space betwen tags in certain cases.
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Specifically, it will remove empty space if and only if there a newline
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character occurs within the space. Thus, code like
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'<span>x</span> <span>y</span>' will be left alone, but code such as
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' ...
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</head>
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<body>
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...'
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will become '...</head><body>...'. Note that this CAN break your
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html if you spread two inline tags over two lines. Use with caution.
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'''),
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action='store_true')
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parser.add_argument('--remove-all-empty-space',
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help=(
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'''When set, this removes ALL empty space betwen tags. WARNING: this can and
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likely will cause unintended consequences. For instance, '<i>X</i> <i>Y</i>'
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will become '<i>X</i><i>Y</i>'. Putting whitespace along with other text will
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avoid this problem. Only use if you are confident in the result. Whitespace is
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not removed from inside of tags, thus '<span> </span>' will be left alone.
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'''),
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action='store_true')
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parser.add_argument('--keep-optional-attribute-quotes',
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help=(
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'''When set, this keeps all attribute quotes, even if they are optional.
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'''),
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action='store_true')
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parser.add_argument('-H', '--in-head',
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help=(
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'''If you are parsing only a fragment of HTML, and the fragment occurs in the
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head of the document, setting this will remove some extra whitespace.
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'''),
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action='store_true')
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parser.add_argument('-k', '--keep-pre-attr',
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help=(
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'''HTMLMin supports the propietary attribute 'pre' that can be added to elements
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to prevent minification. This attribute is removed by default. Set this flag to
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keep the 'pre' attributes in place.
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'''),
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action='store_true')
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parser.add_argument('-a', '--pre-attr',
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help=(
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'''The attribute htmlmin looks for to find blocks of HTML that it should not
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minify. This attribute will be removed from the HTML unless '-k' is
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specified. Defaults to 'pre'.
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'''),
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default='pre')
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parser.add_argument('-p', '--pre-tags',
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metavar='TAG',
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help=(
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'''By default, the contents of 'pre', and 'textarea' tags are left unminified.
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You can specify different tags using the --pre-tags option. 'script' and 'style'
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tags are always left unmininfied.
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'''),
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nargs='*',
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default=['pre', 'textarea'])
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parser.add_argument('-e', '--encoding',
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help=("Encoding to read and write with. Default 'utf-8'."
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" When reading from stdin, attempts to use the system's"
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" encoding before defaulting to utf-8.\n\n"),
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default=None,
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)
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def main():
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args = parser.parse_args()
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minifier = Minifier(
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remove_comments=args.remove_comments,
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remove_empty_space=args.remove_empty_space,
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remove_optional_attribute_quotes=not args.keep_optional_attribute_quotes,
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pre_tags=args.pre_tags,
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keep_pre=args.keep_pre_attr,
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pre_attr=args.pre_attr,
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)
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default_encoding = args.encoding or 'utf-8'
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if args.input_file:
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inp = codecs.open(args.input_file, encoding=default_encoding)
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else:
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encoding = args.encoding or sys.stdin.encoding \
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or locale.getpreferredencoding() or default_encoding
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inp = io.open(sys.stdin.fileno(), encoding=encoding)
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for line in inp.readlines():
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minifier.input(line)
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if args.output_file:
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codecs.open(
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args.output_file, 'w', encoding=default_encoding).write(minifier.output)
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else:
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encoding = args.encoding or sys.stdout.encoding \
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or locale.getpreferredencoding() or default_encoding
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io.open(sys.stdout.fileno(), 'w', encoding=encoding).write(minifier.output)
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if __name__ == '__main__':
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main()
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